Evidence map›Paper›PMID 21385945›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2011

Maternal diet and aging alter the epigenetic control of a promoter-enhancer interaction at the Hnf4a gene in rat pancreatic islets.

Ionel Sandovici, Noel H Smith, Marloes Dekker Nitert, Matthew Ackers-Johnson, Santiago Uribe-Lewis, Yoko Ito, R Huw Jones, Victor E Marquez, William Cairns, Mohammed Tadayyon and 5 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 159 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
159citing papers in PubMed, 2 pooled it
17.8field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

159 citing papers in PubMed, 2 syntheses or guidelines pooled it, 322 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Review
  5. Review
  6. Review
  7. Evolving Characteristics of Type 2 Diabetes Mellitus in East Asia.Endocrinology and metabolism (Seoul, Korea) · 2025
    Review
  8. Review
  9. Article
  10. Biomarkers of aging.Science China. Life sciences · 2023
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. iScience · 2022
    Article
  19. Development and the art of nutritional maintenance.The British journal of nutrition · 2022
    Review
  20. Review

99 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 7 institutions in 4 countries.

Ionel SandoviciMetabolic Research Laboratories, Department of Obstetrics and Gynaecology, University of Cambridge, Cambridge CB2 0SW, United Kingdom.
Noel H Smith
Marloes Dekker Nitert
Matthew Ackers-Johnson
Santiago Uribe-Lewis
Yoko Ito
R Huw Jones
Victor E Marquez
William Cairns
Mohammed Tadayyon
Laura P O'Neill
Adele Murrell
Charlotte Ling
Miguel Constância
Susan E Ozanne
University of Cambridge · GBWellcome/MRC Institute of Metabolic Science · GBCancer Research UK · GBGlaxoSmithKline (United Kingdom) · GBLund University · SEBipar · FRNational Cancer Institute · US

Funding

Biotechnology and Biological Sciences Research Council BB/D007909/1Biotechnology and Biological Sciences Research Council BB/D01235X/1Biotechnology and Biological Sciences Research Council BB/D01235X/2Biotechnology and Biological Sciences Research Council BB/E00797X/1British Heart Foundation FS/09/029/27902Medical Research Council G0600717Wellcome Trust
6 · The paper itself

Abstract

Environmental factors interact with the genome throughout life to determine gene expression and, consequently, tissue function and disease risk. One such factor that is known to play an important role in determining long-term metabolic health is diet during critical periods of development. Epigenetic regulation of gene expression has been implicated in mediating these programming effects of early diet. The precise epigenetic mechanisms that underlie these effects remain largely unknown. Here, we show that the transcription factor Hnf4a, which has been implicated in the etiology of type 2 diabetes (T2D), is epigenetically regulated by maternal diet and aging in rat islets. Transcriptional activity of Hnf4a in islets is restricted to the distal P2 promoter through its open chromatin configuration and an islet-specific interaction between the P2 promoter and a downstream enhancer. Exposure to suboptimal nutrition during early development leads to epigenetic silencing at the enhancer region, which weakens the P2 promoter-enhancer interaction and results in a permanent reduction in Hnf4a expression. Aging leads to progressive epigenetic silencing of the entire Hnf4a locus in islets, an effect that is more pronounced in rats exposed to a poor maternal diet. Our findings provide evidence for environmentally induced epigenetic changes at the Hnf4a enhancer that alter its interaction with the P2 promoter, and consequently determine T2D risk. We therefore propose that environmentally induced changes in promoter-enhancer interactions represent a fundamental epigenetic mechanism by which nutrition and aging can influence long-term health.

Indexed as

DietEnhancer Elements, GeneticEpigenesis, GeneticMaternal ExposurePromoter Regions, GeneticAgingAnimalsCell LineDNA MethylationFemaleHepatocyte Nuclear Factor 4Islets of LangerhansRatsTranscriptional ActivationHepatocyte Nuclear Factor 4Hnf4a protein, rat

Identifiers

PMID21385945
PMCPMC3069181
OpenAlexW2068750527

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.